公开(公告)号：US20150345791A1

公开(公告)日：2015-12-03

申请号：US14483787

申请日：2014-09-11

Applicant: ROLLS-ROYCE PLC ,  ROLLS-ROYCE CONTROLS AND DATA SERVICES LIMITED

Inventor： Michael WHITEMAN ,  Luca ROMEO ,  Yong QIN ,  Paul THORNTON

IPC: F23R3/28 ,  F23R3/00

CPC classification number: F23R3/28 ,  F02C9/34 ,  F23N5/003 ,  F23N5/006 ,  F23N2041/20 ,  F23N2900/05001 ,  F23N2900/05002 ,  F23N2900/05003 ,  F23R3/002 ,  F23R3/346

Abstract: Combustion chamber includes a primary stage fuel burner to supply fuel into a primary combustion zone and secondary stage fuel burner supplies fuel into a secondary combustion zone. A sensor is positioned downstream from combustion chamber measuring concentration of one or more compounds. The sensor sends measurements of the concentration of compounds to a processor. The processor compares the measured concentration of the compound with a first threshold value and a second threshold value. The processor supplies more fuel to the primary stage fuel burner if the measured concentration is higher than the first threshold value, supplies more fuel to the secondary stage fuel burner if the measured concentration is higher than the second threshold value, maintaining fuel supply to the primary and secondary stage fuel burners if the measured concentration is lower than the first threshold value and lower than the second threshold value.

Abstract translation: 燃烧室包括一级燃料燃烧器，用于将燃料供应到主燃烧区，二级燃料燃烧器将燃料供应到二级燃烧区。 传感器位于燃烧室的下游，测量一种或多种化合物的浓度。 传感器将化合物浓度的测量结果发送到处理器。 处理器将化合物的测量浓度与第一阈值和第二阈值进行比较。 如果测量的浓度高于第一阈值，则处理器向初级燃料燃烧器提供更多的燃料，如果测量的浓度高于第二阈值，则向第二级燃料燃烧器供应更多的燃料，维持对主要燃料的燃料供给 如果测量的浓度低于第一阈值并且低于第二阈值，则辅助级燃料燃烧器。

公开(公告)号：US20170268782A1

公开(公告)日：2017-09-21

申请号：US15457456

申请日：2017-03-13

Applicant: ROLLS-ROYCE plc

Inventor： Hua Wei HUANG ,  Jochen RUPP ,  Michael WHITEMAN

IPC: F23R3/34

CPC classification number: F23R3/343 ,  F02C9/32 ,  F05D2270/082 ,  F23N1/002 ,  F23N2037/02 ,  F23N2041/20 ,  F23R3/346 ,  F23R3/50

Abstract: A combustion chamber system has pilot and main fuel manifolds, and pilot and main fuel nozzles. Each pilot nozzle is connected to the pilot manifold. Each main nozzle is connected to the main manifold. A greater total amount of fuel is supplied to the pilot nozzles than to the main nozzles. A greater amount of fuel is supplied to pilot nozzles at, or in, a first region of the combustion chamber than to pilot fuel nozzles at, or in, a second region. A greater amount of fuel is supplied to the main nozzles at, or in, the first region than to the main nozzles at, or in, the second to improve combustion efficiency, weak extinction and relight of the combustion chamber in a first mode of operation. A greater total amount of fuel is supplied to the main nozzles than to the pilot nozzles in a second mode of operation.

公开(公告)号：US20140360202A1

公开(公告)日：2014-12-11

申请号：US14299890

申请日：2014-06-09

Applicant: ROLLS-ROYCE PLC ,  ROLLS-ROYCE DEUTSCHLAND LTD & CO KG

Inventor： Ian James TOON ,  Robert Anthony HICKS ,  Michael WHITEMAN ,  Waldemar LAZIK ,  Imon-Kalyan BAGCHI

IPC: F23R3/34

CPC classification number: F23R3/343 ,  F23D11/107 ,  F23R3/346

Abstract: A fuel injector includes pilot and main fuel injectors. The pilot fuel injector includes at least one pilot air swirler and the main fuel injector includes a main air blast fuel injector located between inner main and outer main air swirlers. A first air splitter is located between the pilot and inner main air swirlers and a second air splitter is located between the pilot and inner main air swirlers. The first air splitter has a downstream portion converging to a downstream end. The second air splitter has a downstream portion diverging to a downstream end. The second air splitter downstream end is downstream of the first air splitter downstream end and the ratio of the distance from the first air splitter downstream end to the second air splitter downstream end to the diameter of the second air splitter downstream end is in the range of 0.22 to 0.30.

Abstract translation: 燃料喷射器包括驾驶员和主燃料喷射器。 所述先导燃料喷射器包括至少一个先导空气旋流器，并且所述主燃料喷射器包括位于内主主空气旋流器和外主空气旋流器之间的主鼓风燃料喷射器。 第一空气分配器位于先导和内部主空气旋流器之间，并且第二分配器位于先导和内部主空气旋流器之间。 第一分流器具有会聚到下游端的下游部分。 第二空气分配器具有向下游端发散的下游部分。 第二分流器下游端在第一分流器下游端的下游，并且从第一分流器下游端到第二分流器下游端的距离与第二分流器下游端的直径的比率在 0.22〜0.30。